The Hebrew chaser means to lack, to be without, to be deficient or diminished. As an adjective it describes something or someone that is incomplete, insufficient, or wanting.
Chaser is the word behind one of the most comforting declarations in all of Scripture: 'The LORD is my shepherd; I shall not want' (Psalm 23:1). The promise that those who trust God will lack nothing is a foundational confession of covenant faithfulness. Conversely, Proverbs uses chaser to describe the fool who 'lacks sense' (Proverbs 10:13) and the wayward heart that leads to ruin. The word frames the fundamental human condition: we are inherently incomplete creatures who find wholeness only in God. Creation is designed so that our lack draws us to the Creator who alone satisfies.